一种新型轻质高强应急路面器材的优化设计

摘要

By using the ANSYS finite element method software to establish the analysis model of pavement-equipment structure, according to the stress analysis results of the stiffener and pavement, the optimization design of the composite lightweight and high strength pavement are carried out in this article. The results show that: the stress distribution and deformation trend of the three kinds of stiffener are basically the same, stress and deformation are generated only at the front and rear wheels. The maximum stress appears in the front wheel, the maximum stress is 291.667 kPa; Maximum displacement occurs at the rear wheel, deformation of stiffener is smallest with three-hole structure, but the position is basically the same. By comprehensive analysis and com-parison, the stiffener of emergency pavement-equipment should adopt 60×30 mm three-hole box structure, and the spacing of stiffener should be 60 mm.%利用有限元软件ANSYS建立路面结构的分析模型，根据加强杆及路面整体的受力分析结果，对复合材料轻质高强路面进行了优化设计。结果表明：3种多孔加强杆应力分布和变形趋势基本一致，仅在前后车轮位置附近产生应力和变形。最大应力出现在前轮作用处，最大应力均为291.667 kPa；最大位移出现在后轮作用处，其中3孔结构位移最小，但位置基本一致。经综合分析比较，优化设计方案为应急路面器材加强杆件应采用60×30 mm 3孔箱体结构，路面杆件间距为60 mm。